1662472120 has 32 divisors (see below), whose sum is σ = 3777606720. Its totient is φ = 658403200.

The previous prime is 1662472117. The next prime is 1662472169. The reversal of 1662472120 is 212742661.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201712 + ... + 209791.

It is an arithmetic number, because the mean of its divisors is an integer number (118050210).

Almost surely, 2^1662472120 is an apocalyptic number.

1662472120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1662472120 is an abundant number, since it is smaller than the sum of its proper divisors (2115134600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1662472120 is a wasteful number, since it uses less digits than its factorization.

1662472120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411615 (or 411611 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 1662472120 is about 40773.4241878212. The cubic root of 1662472120 is about 1184.6356289209.

The spelling of 1662472120 in words is "one billion, six hundred sixty-two million, four hundred seventy-two thousand, one hundred twenty".